Connecting to a queue manager

 

This example demonstrates how to use the MQCONN call to connect a program to a queue manager in z/OS batch. This extract is taken from the Browse sample program (CSQ4BAA1) supplied with WebSphere MQ for z/OS.

⋮
WORKAREA DSECT
*
PARMLIST CALL ,(0,0,0,0,0,0,0,0,0,0,0),VL,MF=L
*
COMPCODE DS    F              Completion code
REASON   DS    F              Reason code
HCONN    DS    F              Connection handle
         ORG
PARMADDR DS    F              Address of parm field
PARMLEN  DS    H              Length of parm field
*
MQMNAME  DS    CL48           Queue manager name
*
*
**********************************************************
*  SECTION NAME : MAINPARM                               *
**********************************************************
MAINPARM DS    0H
         MVI   MQMNAME,X'40'
         MVC   MQMNAME+1(L'MQMNAME-1),MQMNAME
*
* Space out first byte and initialize
*
*
* Code to address and verify parameters passed omitted
*
*
PARM1MVE DS    0H
         SR    R1,R3           Length of data
         LA    R4,MQMNAME      Address for target
         BCTR  R1,R0           Reduce for execute
         EX    R1,MOVEPARM     Move the data
*
**********************************************************
* EXECUTES                                               *
**********************************************************
MOVEPARM MVC   0(*-*,R4),0(R3)
*
         EJECT

**********************************************************
*  SECTION NAME : MAINCONN                               *
**********************************************************
*
*
MAINCONN DS    0H
         XC    HCONN,HCONN       Null connection handle
*
         CALL  MQCONN,                          X
               (MQMNAME,                        X
               HCONN,                           X
               COMPCODE,                        X
               REASON),                         X
               MF=(E,PARMLIST),VL
*
         LA    R0,MQCC_OK       Expected compcode
         C     R0,COMPCODE      As expected?
         BER   R6               Yes .. return to caller
*
         MVC   INF4_TYP,=CL10'CONNECT   '
         BAL   R7,ERRCODE             Translate error
         LA    R0,8                   Set exit code
         ST    R0,EXITCODE            to 8
         B     ENDPROG                End the program
*

 

Parent topic:

System/390 assembler-language examples

fg19070_